Question

how can sliding friction be changed into rolling friction easily

Answer 1

Use of rollers, wheels, converts sliding friction into rolling friction. As we know rolling friction is less than sliding friction, therefore by the use of rollers and wheels we can reduce the amount of force required for moving the object and so the object can be moved easily

Answer 2

Answer:

Sliding friction can be changed into rolling friction easily by providing wheels or ball bearings to the objects to reduce friction and facilitate easy movement.